Filling clamping and parting mechanism for looms



E'. s. STIMPSON. FILLING CLAMPING AND-.PARTINGUMECHANISM FOR LOO'MS.

Fig.1

APPLICATION FILED MAY I4, 1921.

Patented Oct. 31,1922.

2 SHEETS-SHEET I.

lnvenTor. Edward SSTimpson MkM Aflys.

E. s. STIMPSON. FILLING CLAMPING AND PARTING MECHANISM FOR LOOMS.

APPLICATION FILED MAY I4, 192i. 1,433,917. Patented- Oct. 31, 1922-,

2 SHEETS-SHEET 2.

Fig.2,

lnvenToT. Edward SSTirnpson byMW&$m-M

AWys.

15 exhaustion and wherein the old EDfWABD SSTI'MPSOII, OF'I IOPEDALE, lJIASSACHUSETTS, ASSIGNGRTO DRAPEH CORPO- RATION F EOEEIDALE. HLASSACHUSETTS, A' CORPORATION OF MAINE.

FILLINGCLAMFING- AND PAETING :DIIECi'IANISIiE'FOR LOOMS.

A'pnlication filed May-'14. 1921; Serial No. 469,503.

To it who: it may concern:

xlle itlinoire that EDV/Am) E5. SriiirsoN, a citizen of the Uni ed States and resident oi lloped ale, county oi li orcester.

5 Massachusetts, have invented an Improveparts.

I This inventioii relates to aut'oiiiatic' [illine iriziilenishingz looms Wliel'QHl the runis replenished prior to complete or spent filling is partedbetween the cloth and the shuttle by parting means mounted upon a carrier; such asthe usual swingz ing"shuttle feelenso asto be moved bodily. rearwardly and forwardly or toward and from the lay. The object of tae invention is to provide an improved, siiiiple, and ei'lective means tor operating the filling clamping and parting device "when, and. only when, a fresh filling carrier is t. ansterrcd troin the manazine or supply to the lay. ii 'The object ot the invention is further to provide av construction which may be easily and readily adapted. to existing looms.

(lhe object oi? theinvciition is "further to provide a construction which'will yield. upon the ocourence o't an abnormal resistance to the operatioi'i ot the filling clamping and partiiisgilevice. i

The ob ect ot the invention is iur-ther to nine; fillin provide a construction in Which the usual switch cam toropening the fillingclainping and parting device is eliminated and novel means "provided to! sec uring the opening movement. 7

These and other .obgects and teatures ol the invention \Tlll appear and will heparticularly pointed: out claims.

ln theldrawings 1 is atrans-verse section of aportion li-ll-1Ylg*: replenishing loom more fully itroin i the accompanying description anddravvings in the Fig. 3 is a view in transverse cross section taken on the line 33 0f Fig. 2.

' Fig. e is a view inside elevation of portion of the construction. illustrating a dit tereiit 'it'orin of supporting bracket.

. This construction illustrated is thatot the well known Northrop type oi automatic lilling replenishing'looiin-and as -this construction is familiar to those SklllGh-ill the art no detailed. illustration or description beyond the i'eatures particularly concerned with this invention isnecessary. The-broad feature of insuring the operation ctf'the fillingclamping and parting ineaiis \,\l16Il',i1116.l only When, a fresh filling carrier is transferred from thednagasinev to the lay is also disclosed in the patent to Davis 130M578; granted Jan QO, 19lh-and this patent also serves-t0 illustratethe general type of inechanisii: in connection with which apretei'red form Oftl'lG PlQSQIlt invention is herein illustrated.

; The lay 1; the transterrer 2 which ,Iupon the call for filling; thel'QPlOD'lShITlQDtactS toti'ansfeithe filling carriers, or in this oase the'bobbins 3 from the magazine-01 hopper l: to the lay or in this case to' the shuttle 5, atwthereplenishingside of the loom; thecontrolling rock shai t Ci-whi'ch is rocked upoi'ithc-indication oi suhstantial exhaustion in the running shnttle andects to initiate filling rei'ilenishine itg the breast beam 7 the shuttle'ateelerarin 8 which rocks and slides on the stud 9, being swung over the lay in tront-oi the boxed shuttle, upon the operation otthecontrolling rock=--shaft 6 and returned under the actionof the spring 10 are iartsthe construction and operation of which will readily be HiiClBi'St Odlay-0116 familiar ith the'art such. as is disclosed. in the patent to Davis ZtbOVGIZlfiflhiOIlGd 3115i the," patents therein referred to.

'lllie replenishingmagazine 4; is provided with the nsualguide stop 11;; against which the filling carrier or bobbin 3 is brought position- "for transfer. The' filliiig=cari'iei' to be transferred is yieldingly 1 supported i and:

guided the side-opposite to the: stop 11 by the 1 yusual portv in the form of a liat finger located adj ace'nt the iinner itace' otthe: magazine.

' This supporting -finger 12; is connected to:

a -.stud "-T13# extendingt tough ithe side -of ino able filling" carrier sup the filling transfer the magazine and carrying on the opposite side an arm 14.. A spring 15 is held between a lug 16 on the magazine and the head 17 of a slide rod 18 connected with the arm 1-1, the rod being guided in the lug. The stop 11 thus forms one side of a threat which the filling carrier passes from the magazine to the lay the filling carrier support or linger 12 forming the other side. hen the transfer 2 is operated to transfer a fresh filling carrier from the magazine to the lay, this filling carrier support yields and supports and guides the filling carrier as it passes to the lay.

The filling clamping and parting device may be of any suitable form and construction and is shown as generally similar to that illustrated in the patents above referred to. This device is also shown as supported and carried by the usual shuttle feeler 8. The movable blade 19 co-operates with fixed blades, one of which is shown at 20, and the movable blade 19 secures its opening and closing movement about the pivot 21.

Then a replenishment of filling is called for the shaft 6 is rocked in the usual manner raising the arm 22 extending rearwardly therefrom and therethrough rocking the shuttle feeler 8 toward the lay. If the shuttle is properly boxed this feeler will passin front of the shuttle in the usual manner and the dog 23 will be brought into the path of a hunter on the lay and thereupon the transferrer 2 will be operated to transfer the filling carrier 3 from the magazine to the lay therebeneath.

YVhen the shuttle feeler thus swings rearwardly over the lay the from the filling carrier to be abandoned enters between the members of the filling clamping and parting device which are then in open position. In. the case of the type of mechanism to which this invention relates the filling clamping and parting device is closed to clamp and part the filling when, and only when, a filling carrier is actually transferred by the trausferrer from the magazine to the lay. Consequently, if the shuttle be improperly boxed so that it struck by the shuttle feeler or if the conditions are such that the shuttle feeler no matter to What extent it may move, does not effect a filling transfer or if for any reason does not actually take place then there can be no severance of the filling by the filling clamping and parting device.

This result is secured in the present invention by operating the filling clamping and parting device through the movement of the filling carrier support 12 which only moves when actual transfer takes place.

The present invention provides a yieldable operative connection between this filling carrier support 12 and the filling clamping and.

filling extending -arm let connected with the parting device when in operative position so that in case of any abnormal resistance to a relative movement between these parts there will'be no danger of a smash or of damage to the loom.

A supporting bracket 2% is provided for this connection. In Fig. 1 the supporting bracket 24 is shown as supported on the axial stud 25 of the magazine. The bracket is provided with an elongated slot 26 fitting over the stud 25 so that the bracket may be adjusted into any desired position and then locked in place'by the nut 27. In Fig. the supporting bracket 28 is shownof a different shape and secured in the required position by being bolted directly to the side of the magazine 4- by a bolt 29. It is obvious that the supporting bracket may thus be secured and held in place in any desired manner. The form shiwn in Fig. 1 enables the bracket'tohbe applied to existing looms simply by placing it over the stud 25 already on the loom and then locking it in place.

This supporting bracket carries a hori zontal stud 30 which serves as the fulcrum for an actuator lever by means of which the movement of the filling carrier support 12 is transferred to the filling clamping and parting device. The yieldable feature in this form of invention is effected by making the actuator lever flexible. For this pur pose it is made of stout spring wire so proportioned that under normal conditions it has suflicient rigidity to effect the clamping operation but under abnormal resistance to a relative movement between the filling carrier support and the filling clamping and parting device it will flex or yield.

This actuator lever is shown as wound in spiral form at '31 to form a fulcrumed hub fitting over the stud 30. One arm 32 of the lever is bent into U-shape and fits over a stud 33 projecting laterally from the filling carrier support 12. ator lever is bent horizontally and then let erally and then downwardly to form the portion 35 and then forwardly to form the portion 36 about as shown in the drawings.

The movable member 19 of the filling clamping and parting device is provided with a laterally extending pin 37 at its for" ward upper end and. the parts are so ranged'that when the shuttle feeler has car ried the filling clamping and parting de vice into operative position over the filling of the filling carrier to be abandoned this pin 37 will have ridden over the portion 36 of the actuator lever and come into theangle formed between the portions 35 and 36 of the lever, all as shown in Fig. 2.

If new transfer takes place and the filling carrier support 12 is rocked by the actual transfer of the filling carrier from the m n- Zine t0 the lay in the replenishing operation.

The other arm 35% of the actu 1 then-the actuator lever will be rocked about and parting of the filling. It for anyreason whatever-there is anabnormal resistance to relative I'HOVGIIXGllt between the filling carrier support-12 and themovable member-oi the filling clan'ipingand parting device, then the act-uatin' lever 'Wlll fiexoryield and thus no injury or damage will occur to; any of the parts.

After the clamping and parting operation has taken place the.shuttle tteeler swings torwardly carrying the end o't'"thefilling extending to the toll and moves into a position such as illustrated in Fig. 1. Consequently, the filling clamping and parting device must be brought to open position before it can again function. This result has generally been secured by the use ot a switch cam; In the present invention this result is secured by the actuator lever and-thus the switch ,cam is eliminated. Then the slnittleteeler swings rearwardly the stud. 37 comes against the downwardly extended portion 35 or the actuator lever, and hence the movable blade 19 is rocked into open position.

It is desirable to reinforce and guide the actuator lever to prevent it flexing or yielding when struck by the stud 37 to effect the openingof the filling;- clamping and parting device. For this purpose an adjustable slotted. plate 38 provided. This plate is mounted on a flange 39 extending laterally from the bracket 2% or 28. The plate 38 is slotted at d0 transversely to the slot in the flange Hence a single bolt ell serves to adjust and lock the plate 38 into any desired position. This plate 38 is provided with a slot as shown surrounding and extending rearwardly ot the downward portion. 35 ot the actuator lever. It consequently prevents twisting of the lever and reinforces the lever against backward movement when struck by the stud. 37. I

There is thus provided a very simple and practical mechanism readily applied to existing looms. readily adjusted to existing conditions and of strong and efficient construction. 'llhere can he no operation of the filling clamping and parting device unless actual transfer (It a fresh filling carrier tilliBS place and when this transfer does take place the operation is effected accurately and surely but Without any danger of injury or breakage oi? the working; parts of" the loom, due to the occurrence of some abnormal condition. w

The adjustment ot' the supporting bracketand the yieldable feature of the actuator is also of great advantage in assembling and operating the cutter. By this construction the parts are readily positioned so that when the movable cutter blade is actuated to close opening of the it. a

i the fillingclamping and parting device no injurious strain placed upon the parts after "the closing position has been reached. 'Havmgthus described my invention, what I claim asnew and '(lQSlI'Q to secure by Let-.

ters Patent. is:

.ln. An automatic filling replelnshmg loom comprising a lay, a re t len1shing magazlne d'orthe fresh filling carriers, means for transiterring a fresh filling carrier from the magazine to the lay, a filling clamping and parting device'movable into position to receive the running filling when the lay is in position, tortransier, and an actuatoryieldable upon the occurrence o't an abnormal; re-

sistance and actuated by or through the transfer of theitresh filling carrier-fromthe magazine to the lay to actuate the filling clamping andparting-device to-clamp and iart the filling-extending from thefilling carrier to be abandoned the said actuator hem )ositioned tobestruck b the fillin ;elamping and partingdevice upon'its movement: into position and thereby to ctlect the said device. An automatic filling replenishing loom comprising the construction. defined in claim l tog'ether with means for reintorcingthe actuator to prevent its yielding when struck by the said device to "effect the opening:

- thereof.

3. An automatic filling replenishing loom comprising alay. a replenishingmagazine for the fresh filling carriers, means" for transferring a fresh filling carrier from the magazine to the lay, a filling clamping and parting device movable into position to receive the running filling When the lay is in position for transfer, a movable filling carrier support moved by the filling carrier upon its discharge from the magazine to the lay. a bracket and means for mounting it rigidly on the loom frame, and an actuator lever :tulcrumed on the said bracket engaging at one end the filling carrier support, engaging at the other end the filling clamping and parting device and yieldable upon the occurrence of an abnormal resistance to relative movement of the said support and of the said device but acting under normal conditions to actuate the said device upon the movement of the filling carrier support to effect the clamping and parting of the filling extending from the filling carrier to be abandoned.

l. An automatic filling replenishing loom comprising the construction defined in claim 3 in which the actuator lever is in itself resilient and yields l-y fiexion.

5. An automatic filling'replenishing loom comprising the: construction defined in claim 3 in which the bracket is adjusta-bly mounted upon the usual axial stud of the replenishing magazine.

(it An automatic filling replenishing 100m comprising a lay, a replenishing magazine for the fresh filling carriers, means for transferring afresh filling CIT carrier from the magazine to the lay, afilling clamping and parting device movable into position to receive the running filling when the lay is in position for transfer, a filling carrier support pivotally mounted in the magazine and movable by the filling carrier upon its discharge from the magazine to the lay, a supporting bracket rigidly secured to the loom frame and extending adjacent the filling carrier support, a flexible actuator lever fulcrumed on the bracket and engaging with one arm the pivoted filling carrier support and having .its other arm provided with a downwardly extended portion followed by a forwardly extended portion, a stud on the filling clamping and parting device acting to open the said device when upon movement thereof it comes into contact with the dovvnwardly extended portion of the actuator lever and acting to effect the closing of the said device when'the actuator lever is rocked to raise the forwardly extended portion thereof. y

7. An automatic filling replenishing loom comprising the construction defined in claim 6 in which a reinforcing plate is adjustably mounted on the bracket to guide the actuator lever and limit the yielding movement thereof when struck by the stud to effect the opening of the filling clamping and parting device.

8. In an automatic replenishing loom a bracket, a stud extending therefrom, a flange extending therefrom parallel with the stud, a'spring wire lever having a fulcrum on the said stud, and a slotted guiding adjustably mounted on the flange and engaging one arm of said lever.

9. An automatic filling replenishing loom comprising a lay, a. replenishing magazine for the fresh filling carriers means for transferring a fresh filling carrier from the magazine to the lay, a filling clamping and parting device movable into aposition to receive the running filling when the lay is in position for transfer, a movable filling carrier support moved by the filling carrier upon its discharge from the magazine to the lay, a bracket secured to the side of said magazine in proximity to said filling carrier support, an actuator lever fulcrumed on said bracket engaging at one end the filling carrier support, engaging at the other end the filling clamping and parting device and stop plate:

yieldable upon the occurrence of an abnormal resistance to a relative movement of said support and said device, but acting under normal conditions to actuate said device upon the movement of the filling carrier support to effect the clamping and parting of the filling extending from the filling cari rier to be abandoned.

In testimony whereof, I have slgned my name to this specification.

ED'WARD S. STIMPSON. 

